Aloha! the specifications say 24 vdc input, bit one picture says 12-48 vdc input. can i use this with a 48 vdc power supply?

Yes, the 5 ports Ethernet Switch can use 12-48 vdc input, it support wide range voltage input.

A custmer review said the switch faild to work and course caused short circuit of power supply. Is this happen often?

Please rest assured, we have consulted our technical team, whether it is chip, resistor, capacitor or other parts damage is unlikely to cause a short circuit. We've sold thousands of 5 ports switches on Amazon and this is the first time we've had this problem with customer responses. We are also actively inquiring about the details of the customer's review, but have not received a response. Even if our products are broken, we will provide after-sales service to protect the rights and interests of consumers, so you can buy with confidence.

Is this a poe output switch? what are it's power output capabilities?

NO. It is not a POE switch. It is meant for DIN Rail mounting and utilizing a +24V Din rail mounted power supply like the Meanwell MDR-60-24 or equivalent. It has one UPLINK and four DOWNLINK ports. The UPLINK is used to patch over (daisy-chain) to the next switch.

Can I fuse at 5amp for 24 volt nominal battery (what is the max/min fuse)? Because it operates at 24v, that is the optimal input right?

The 5 ports switch has no exact max/min fuse current, actually it is closely related to voltage DC12~48V. It adjusts the current according to the voltage and devices, generally this current is relatively small. At the same time, it can also be used in currents above 0.3 amps when adaptor is 24V. If you have 24V 5A power supply, you can use it on switch. Both 12V and 24V power supply are ok

Maximum Power	6 Watts
Data Transfer Rate	1000 Megabits Per Second
Current Rating	1 Amps
Upper Temperature Rating	167 Degrees Fahrenheit
Interface	RJ45
Platform	Not Machine Specific
Voltage	48 Volts, 12 Volts
Number of Ports	5
Compatible Devices	Desktop
Switch Type	Metal
Item Dimensions L x W x H	3.74"L x 2.76"W x 1.15"H
Case Material Type	Metal
Color	black

Mini Industrial 5 Ports Gigabit Ethernet Switch

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